Subfamily Cyclasterinae Poslavskaya 1964 (heart urchin)
Echinoidea - Spatangoida - Micrasteridae
Full reference: N. A. Poslavskaya. 1964. Class Echinoidea. General part. Principles of Paleontology. Echinodermata, Hemichordata, Brachiopoda and Polychaeta. Nauka, Moscow 174-189
Parent taxon: Micrasteridae according to A. Kroh and A. B. Smith 2010
Sister taxa: Brissopneustes, Habanaster, Isopneustes, Micraster, Ovulaster
Subtaxa: none
Ecology: slow-moving shallow infaunal deposit feeder-detritivore
Distribution: there are no occurrences of Cyclasterinae in the database